Detonating compositions



Patented JuneZG, 193% I DETONATING COMPOSITIONS Erich Scholz, Grotzingen, Germany, assignor to Deutsche Waflienuml Munitionsfabrikcn Aktiengesellschaft, Berlin-Charlottcnburg, Germany, a joint-stock company of Germany No Drawing.

Application August 24, 1937, Serial No. 160,673. In Germany June 4, 193'! 7, Claims. .(El. 5 2--2)' For the production of non-rusting and non-corroding priming or fulminating compositions, particularly priming compositions free from mercury, heretofore use has preferably been made of the 5 so-called tetracenes, which when added to the usual composition components, for example to lead trinitroresorcinate, represent an excellent sensitising agent.

It has now been found that the above-men- 10 tioned tetracenes are not the only substances which may be employed for increasing the sensitivity oi priming compositions, but that the same object may be attained by the use of highly nitrogenous compounds.

According to the invention, the known diazotriazole carboxylic acid, which may be produced by diazotising amidotriazole carboxylic acid, is employed as initiating priming substance.

The starting product employed is amidotriazole 20 carboxylic acid.

, Percent Lead styphnate 30 to 60 Diazo-triazole carboxylic acid 1 to 10 Antimony sulphide to 10 40 Lead dioxide 0 to 5 Barium nitrate 20 to 50 Calcium silicide 0 to The following composition is proposed for example for percussion caps:

Percent Lead styphnate 30 Diazo-triazole carboxylic acid 5 Antimony sulphide 10 Lead dioxide 5 Barium nitrate 45, Calcium silicide 5 Diazo-triazole carboxylic acid increases the sensitiveness to percussionof a priming composition in an excellent manner if it is added in small quantities to the actual priming agents, such as lead trinitroresorcinate, barium trinitroresorcinate and the like.

I claimr.

1. Priming compositions containing diazo-triazole carboxylic acid.

2. Priming compositions free from mercury compounds containing as a sensitising agent diazo-triazole carboxylic acid.

3. Priming compositions containing a small proportion, but not exceeding about 10%, .of diazotriazole carboxylic acid. I

4. Priming compositions containing diazo-triazole carboxylic acid in amounts of from about 1% to about 10%.

5. Priming compositions containing the following ingredients within the percentages specified? Lead styphnate, about to about 60%; diazotriazole carboxylic acid, about 1% to about 10% and barium nitrate, about 20% to about 50%.

6. Priming compositions containing lead styphnate, about 30 to about 60%; diazotriazole carboxylic acid, about 1% to about'10%; antimony sulphide, an amount not exceeding about 10%; lead dioxide, an amount not exceeding about 5%;

- barium nitrate, about 20% to about 50%; and cal- 

